100 lines
3.6 KiB
C
100 lines
3.6 KiB
C
/*
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* Copyright (c) 2013, Hasso-Plattner-Institut.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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*/
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/**
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* \file
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* Common functionality of 802.15.4-compliant llsec_drivers.
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* \author
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* Konrad Krentz <konrad.krentz@gmail.com>
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*/
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/**
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* \addtogroup llsec
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* @{
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*/
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/**
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* \defgroup llsec802154 Link Layer Security Common Functionality
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*
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* Common functionality of 802.15.4-compliant llsec_drivers.
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*
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* @{
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*/
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#ifndef LLSEC802154_H_
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#define LLSEC802154_H_
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#include "contiki/mac/frame802154.h"
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#include "contiki/ip/uip.h"
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#ifdef LLSEC802154_CONF_SECURITY_LEVEL
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#define LLSEC802154_SECURITY_LEVEL LLSEC802154_CONF_SECURITY_LEVEL
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#else /* LLSEC802154_CONF_SECURITY_LEVEL */
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#define LLSEC802154_SECURITY_LEVEL FRAME802154_SECURITY_LEVEL_NONE
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#endif /* LLSEC802154_CONF_SECURITY_LEVEL */
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#if ((LLSEC802154_SECURITY_LEVEL < 0) || (LLSEC802154_SECURITY_LEVEL > 7))
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#error "unsupported security level"
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#endif
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#define LLSEC802154_SECURITY_LEVEL_MIC (LLSEC802154_SECURITY_LEVEL & 3)
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#if LLSEC802154_SECURITY_LEVEL_MIC
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#define LLSEC802154_MIC_LENGTH (2 << LLSEC802154_SECURITY_LEVEL_MIC)
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#else
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#define LLSEC802154_MIC_LENGTH 0
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#endif
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#ifdef LLSEC802154_CONF_USES_ENCRYPTION
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#define LLSEC802154_USES_ENCRYPTION LLSEC802154_CONF_USES_ENCRYPTION
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#else /* LLSEC802154_CONF_USES_ENCRYPTION */
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#define LLSEC802154_USES_ENCRYPTION (LLSEC802154_SECURITY_LEVEL & (1 << 2))
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#endif /* LLSEC802154_CONF_USES_ENCRYPTION */
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#ifdef LLSEC802154_CONF_USES_EXPLICIT_KEYS
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#define LLSEC802154_USES_EXPLICIT_KEYS LLSEC802154_CONF_USES_EXPLICIT_KEYS
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#else /* LLSEC802154_CONF_USES_EXPLICIT_KEYS */
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#define LLSEC802154_USES_EXPLICIT_KEYS 0
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#endif /* LLSEC802154_CONF_USES_EXPLICIT_KEYS */
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#if UIP_BYTE_ORDER == UIP_LITTLE_ENDIAN
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#define LLSEC802154_HTONS(n) (n)
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#define LLSEC802154_HTONL(n) (n)
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#else /* UIP_CONF_BYTE_ORDER == UIP_LITTLE_ENDIAN */
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#define LLSEC802154_HTONS(n) (uint16_t)((((uint16_t) (n)) << 8) | (((uint16_t) (n)) >> 8))
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#define LLSEC802154_HTONL(n) (((uint32_t)UIP_HTONS(n) << 16) | UIP_HTONS((uint32_t)(n) >> 16))
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#endif /* UIP_CONF_BYTE_ORDER == UIP_LITTLE_ENDIAN */
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#endif /* LLSEC802154_H_ */
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/** @} */
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/** @} */
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